Abstract: A method is proposed for arc spraying by means of a spray gun (1). The spray gun includes two electrically conductive spray wires (2) and at least one first supply device (3) for supplying a fluid (4), with an electrical voltage being applied to the spray wires (2), the spray wires (2) being fed by means of a wire guide (5), an arc (6) being ignited by the electrical voltage, the spray wires (2) being converted into a melt (8) in a melting region (7) and the melt (8) being applied by the fluid (4) to the surface (9) of a body (10). In this connection, particles (11) from a storage container (12) are supplied to the melt (8) by the fluid (4).

Abstract: A method is proposed for arc spraying by means of a spray gun (1). The spray gun includes two electrically conductive spray wires (2) and at least one first supply device (3) for supplying a fluid (4), with an electrical voltage being applied to the spray wires (2), the spray wires (2) being fed by means of a wire guide (5), an arc (6) being ignited by the electrical voltage, the spray wires (2) being converted into a melt (8) in a melting region (7) and the melt (8) being applied by the fluid (4) to the surface (9) of a body (10). In this connection, particles (11) from a storage container (12) are supplied to the melt (8) by the fluid (4).

Abstract: A method of coating an inner surface of a weapon barrel includes the following steps: directing a laser beam against the inner barrel surface to cause melting of regions thereof; introducing a coating material in one of powder, wire and ribbon form into the laser beam for melting the coating material to produce in the surface regions a molten bath composed of the molten coating material and a material of the weapon barrel; and moving the laser beam inside the weapon barrel axially thereof and relative thereto, whereby the molten substance of the bath becomes rigid as the laser beam moves away therefrom.

Abstract: A method of coating an inner surface of a weapon barrel includes the following steps: introducing a plasma burner into the weapon barrel; producing a plasma flame by the plasma burner; directing the plasma flame against the inner barrel surface to cause impingement thereon; introducing a coating material in powder, wire or ribbon form into the plasma flame for melting the coating material to form a molten liquid and for depositing the molten liquid by the plasma flame on the inner barrel surface; and moving the plasma burner inside the weapon barrel axially thereof and relative thereto while performing the depositing step for obtaining a surface coating on the inner barrel surface.

Abstract: A method of coating an internal surface of a weapon barrel includes the steps of applying an intermediate layer to the internal barrel surface by explosion plating and applying a cover layer at least indirectly to the intermediate layer by electroplating. The intermediate layer has a heat conductivity which is greater than that of the weapon barrel and a ductility which is greater than that of the cover layer.

Abstract: A method of coating an inner surface of a weapon barrel includes the following steps: directing a laser beam against the inner barrel surface to cause melting of regions thereof; introducing a coating material in one of powder, wire and ribbon form into the laser beam for melting the coating material to produce in the surface regions a molten bath composed of the molten coating material and a material of the weapon barrel; and moving the laser beam inside the weapon barrel axially thereof and relative thereto, whereby the molten substance of the bath becomes rigid as the laser beam moves away therefrom.

Abstract: A method of coating an inner face of a weapon barrel with a coating material includes the following steps: introducing the coating material as a component in sheet or foil form into the weapon barrel; positioning the component in the weapon barrel such that a first face of the component is oriented toward the inner face of the barrel and a second face of the component is oriented away from the inner face of the barrel; maintaining an annular clearance between the inner face of the barrel and the component; providing the second face of the component with an explosive; and detonating the explosive for hurling the coating material of the component against the inner face of the barrel for effecting a cold welding between the coating material and the inner face of the barrel.

Abstract: A method of coating an inner surface of a weapon barrel includes the following steps: introducing a plasma burner into the weapon barrel; producing a plasma flame by the plasma burner; directing the plasma flame against the inner barrel surface to cause impingement thereon; introducing a coating material in powder, wire or ribbon form into the plasma flame for melting the coating material to form a molten liquid and for depositing the molten liquid by the plasma flame on the inner barrel surface; and moving the plasma burner inside the weapon barrel axially thereof and relative thereto while performing the depositing step for obtaining a surface coating on the inner barrel surface.